Finding the Fourth Proportional to 81,232,451.57, 112,100,119.70 and 44,062,638.80
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Solution
The fourth proportional to 81,232,451.57, 112,100,119.70 and 44,062,638.80 is: 60,806,081.65
Step by Step Solution
- Step 1: Write the proportion equation
81,232,451.57 : 112,100,119.70 = 44,062,638.80 : x - Step 2: Convert to fraction form
81,232,451.57/112,100,119.70 = 44,062,638.80/x - Step 3: Cross multiply
81,232,451.57x = 112,100,119.70 × 44,062,638.80 - Step 4: Simplify right side
81,232,451.57x = 4,939,427,082,997,050 - Step 5: Solve for x
x = 4,939,427,082,997,050/81,232,451.57 - Step 6: Final answer
x = 60,806,081.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.